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Get the value of the form in the parent window in Iframe (sample code)_javascript skills

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Release： 2016-05-16 17:13:05
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Part of the code is as follows:





="ScrollFrame" src="aa.asp" width="100%"> /form>

Question: How to determine whether the value of the input box (BH) in the form (frm) is empty in aa.asp?

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aa.asp file test code

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